3644000347 has 4 divisors (see below), whose sum is σ = 3924308080. Its totient is φ = 3363692616.

The previous prime is 3644000341. The next prime is 3644000351. The reversal of 3644000347 is 7430004463.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3644000347 - 2⁷ = 3644000219 is a prime.

It is a super-2 number, since 2×3644000347² = 26557477057872240818, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3644000341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 140153847 + ... + 140153872.

It is an arithmetic number, because the mean of its divisors is an integer number (981077020).

Almost surely, 2^3644000347 is an apocalyptic number.

3644000347 is a deficient number, since it is larger than the sum of its proper divisors (280307733).

3644000347 is a wasteful number, since it uses less digits than its factorization.

3644000347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280307732.

The product of its (nonzero) digits is 24192, while the sum is 31.

The square root of 3644000347 is about 60365.5559653019. Note that the first 3 decimals coincide. The cubic root of 3644000347 is about 1538.8376492208.

The spelling of 3644000347 in words is "three billion, six hundred forty-four million, three hundred forty-seven", and thus it is an aban number.